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		<pubDate>Sat, 09 Apr 2022 05:08:00 +0000</pubDate>
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		<title>CentOS / Red Hat 停用 yum / dnf 的 IPv6 連線</title>
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		<pubDate>Wed, 15 Dec 2021 02:08:00 +0000</pubDate>
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		<title>systemctl status 訊息被截斷</title>
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		<pubDate>Mon, 20 Sep 2021 08:31:00 +0000</pubDate>
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		<title>使用 fail2ban 防範 sshd 及 vsftpd 密碼暴力破解</title>
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		<pubDate>Thu, 01 Jul 2021 07:27:00 +0000</pubDate>
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		<title>利用 firewall-cmd 建立封包轉送並記錄機制</title>
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		<pubDate>Sun, 21 Mar 2021 07:43:00 +0000</pubDate>
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		<title>grep 使用正規表示式找 IPv4 及 IPv6 位址</title>
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		<pubDate>Tue, 14 Jan 2020 01:38:00 +0000</pubDate>
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					<description><![CDATA[IPv4： grep -Eo "([0-9]{1,3}[.]){3}[0-9]{1,3}" filename  [&#8230;]]]></description>
		
		
		
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		<title>在中文語系環境中讓用英文格式回傳結果，以 date 為例</title>
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		<pubDate>Fri, 15 Nov 2019 05:38:00 +0000</pubDate>
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		<title>使用 firewalld 限制同一 IP 單位時間內之連線數</title>
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		<pubDate>Tue, 24 Apr 2018 00:55:33 +0000</pubDate>
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					<description><![CDATA[為了限制同一個 IP 在單位時間內之連線數量，可以運用 iptables 來達成。CentOS 7 之後，改成 [&#8230;]]]></description>
		
		
		
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		<title>Linux 加入 AD</title>
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		<pubDate>Tue, 10 Feb 2015 05:10:46 +0000</pubDate>
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					<description><![CDATA[需求：在 AD 統一控管帳號之環境中，將 Linux 伺服器加入 AD，以使 Domain Admins 群組 [&#8230;]]]></description>
		
		
		
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		<title>免密碼 su 及禁止 su</title>
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		<pubDate>Mon, 30 Dec 2013 13:36:41 +0000</pubDate>
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